Factors Influencing the Mechanical Properties of B206 Alloy Castings

摘要

The AA 206 family of Aluminum casting alloys includes some of the strongest, toughest, aluminum foundry alloys in current use. Primarily limited to aerospace and military applications, because of their tendency towards hot shortness, these alloys are also seeing increased interest as candidates for automotive suspension applications. This paper will outline the results of studies carried out under the auspices of the USCAR aimed at more fully characterizing and understanding the mechanical performance of the alloys as a function of composition, casting process, and temper. The results of a statistically designed experiment covering the allowable range of alloy elements and impurities within the AA 206 system will be interpreted in terms of the quality factor for both the T4 and T7 tempers.